Improvement in machines for relishing the rails of sash, doors, and bunds



3 Sheets-Sheet 1.

' G. W. MAHER. Machines for Relishing the Rails of SaJsh, Doors and lBlinds.

Patented Nov. 27, I877.

3 SheetS- Sheet 2.

e w. MARE-R. Machines, for'Relishing the Rails of Sash,

Doors and Blinds.

' Patented 'No I I I: 3 Sheets-Sheet 3.

GQW. MAKER. M Machines for Relishing the Rails of Sash, Doors andBlinds.

Patented Nov. 27; 1877.

ILPETERS; PHOTO LIYHDGRAPHER. WASHINGTON, 0

GEORGE w. MAHER, or ALBION, MICHIGAN.

v1 513;, Arr-ES PATIENT ()FFIGE.

IMPROVEMENT IN MACHINES FOR RELISHING TH ERAILS 0F SASH, DOORS,AND'BLINDS.

v Specification forming part of Letters Patent No. 197,646, datedNovember 27, 1877 application filed July 19, 1877.

To all whomit may concern:

Be it known that I, GEORGE W. MAHER, of Albion, in the county of Calhounand State of Michigan, have invented an Improvement inRelishing-Machines, of which the following is a specification The natureof my invention relates to an improvementjn machines for relishing therails of sash, doors, and-blinds, and cutting the necessary wedges fromthe waste timber at the time the complete tenon is made; and

its object is to obviate the necessity of handling the rail at eachsuccessive step in the process. This has been partially accomplished bya machine having two gangs of three circular saws each mounted on anarbor, and two saw-table's, one opposite each gang. With one gang (andwith its tablegage set to an angle with the arbor) the wedge-slots couldbe cut, but only one of them up to the'shoul.

der, so as to make a full-length wedge, while with the other gang thewedges would be,

sist. first, in placing a double gang of circular saws upon one end ofthe arbor, and graduating them in diameter, so that, when the end of arail is fed angularly up to them, they will slot it up to the shoulder;secondly, in an arm extending from the back over to the front of adouble gang at the other end of the main arbor, (which gangs split thewedges and form the tenon,) to support the front end of the arbor of thesaw which cuts off the wedges, while it also serves as a guard forpreventing the gang-saws from throwing wedges or slivers toward theoperator; thirdly, in suitable de-.

vices for automatically throwing the cut-off saws into operation andraising the table, so as to bring the rail into contact with said saws.

Figure 1, Sheet 1, is aperspective view of the machine. Fig.2, Sheet 2,is a plan or top view. Fig. 3 is a longitudinal section of an arm andguard at w m. Fig. 4, Sheet 3, is a vertical section at y y, showing inside elevation the mechanism for throwing the cut-off saws intooperation. Fig. 5 is a sectional elevation of the other side of thecounter-drum, showing the manner of raising the saw-table automaticallyby a cain on said drum. Fig. 6 is a plan of a rail end diagonallyslotted. Fig. 7 is a view of it longitudinally slotted. Fig. 8. is aplanof the same, showing the wedges cut off and the tenons completed.

In the drawing, A represents the frame of the machine, having the arborB journaled longitudinally at the top, and which is driven from acounter-shaft, 0, below. On the arbor, near the left-hand end, ismounted a gang of saws, D, arranged in two groups-one of two and one ofthree saws-0f gradually-increasing diameter. In front of these a table,D, slides on ways, and is provided with a stop, a, at the front edge,and an adjustable gage,b, at the left side. A stop under the tablearrests the forward motion of the latter. The saws are longitudinallyadjustable in both groups on the arbor. The gage is adjusted into suchan angle with the saws as to give the required bevel to the wedges,after which the rail is placed on the table against the gageand stop,and run into the saws until the table is arrested by the under stopcutting the diagonal slots in the tenon end of said rail, as seen inFig. 6.

At the other end of the arbor another gang of saws, E, is mounted in twogroups of two and four saws, respectively, in front of which asaw-table, E, has a vertical movement with I a supporting-gate, c, inguides d at the front of the frame A. This table may be raised by atreadle connected with the bottom of the gate 0 through a curved rod, F;but I prefer to omit the treadle and raise the table automatically. Onthe right side of the table is an adjustable gage, b, and next to itthere'is a slide, E dovetailed flush into the table-top with anadjustable stop, 0, at its front end.

The saws E are adjustable on the arbor to the size and relative positionof the tenons to be formed, which is done by placing thediagonally-slotted rail end seen in Fig. 6 upon the table against thegage b, and pushing forward the rail into the saws, which rip each of.the

diagonal tongues into two wedges and form the parallel sides of thetenons, all the cuts extending to the rail-shoulder. The inner ends ofthe wedges are then cut oil by two cross-cut circular saws close to theshoulder,

The cut-oil, saws L L are each mounted on the front end of an arbor, M,at right angles with the arbor B, and above it. One arbor is to the leftof the saws E, and the other passes between the group of four, and bothare journaled through the ends of segment-arms N, the rear end of eachbeing firmly bolted to a head-block in the frame behind the saws. Thearbors M are driven by quarter-turn belts from the counter-shaft O.

The arms N are longitudinally adjustable on the head-block by means ofthe screws f f. The arms pass over the tops of the saws, and serve asguards to prevent the saws from throwing wedges or slivers into the faceof the operator. They are also ribbed on the under side to stiffen them,and afford a bearing for the outer ends of the arbors M, that will causethem to run true and steady at all times. By raising the table E thebases of the wedges will be cut away from the shoulder.

As hereinbefore mentioned, this table can be raised by a treadle; but Iprefer to do it automatically. To this end I fasten a stud, g, to theright front leg of the machine, and on which I sleeve at its angle abell-crank lever,

G, and journal also on said stud a pulley,H,

with a guard-disk, H, outside of it, with a cam or wiper, I, betweenthem. A belt, J, is hung loosely around the pulley H and one on thecounter-shaft. A tightener-pulley, h, is journaled on a. stud projectingfrom the foot of the lever, so as to overhang the belt. Another roller,1', at the top of the lever, projects into the path of a thumb, j,pendent from the slide E so that when the said slide is pushed forwardby the end of the rail the tightenerpulley it will take up the slack ofthe belt J, and through it rotate the pulley H and its cam I, which,passing under a bend in the rod F, raises the gate a and the superposedtable E thereby bringing the work into contact with the cut-off saws. Itwill then be seen that the operator has but to handle the railtwice--once to cut the diagonal slots, and once to cut the longitudinalslotsthe rest of the process being done automatically, including themaking and the cutting off of the wedges.

What I claim as my invention is- 1. In a relishing-machine, thecombination of two gangs of circular saws upon the same arbor, the sawsirteach gang regularly increasing in size, a table for each gang ofsaws, one table provided with guides, and adapted to present the raildiagonally to its proper gang of saws, the other table adjustablevertically,

and adapted to present the rail in a right line to its proper gang ofsaws, and cut-off saws, all arranged upon one table, substantially asdescribed and shown.- 1

a 2. In a relishing-machine, substantially as described, the arms N,forming guards for the saws, in combination with the head-block andarbors M, substantially as and for the purpose set forth.

3. The combination, with the table E, of the slide E thumb j, lever G,pulley H, cam I, belt J, tightener-pulley h, and rod E, forautomatically raising the table E, substantially as described.

- GEORGE W. MAHER. Witnesses:

H. F. EBERTs, H. S. SPRAGUE.

